Adding a wireless router to an existing ethernet network

By smears ·
I have serveral wireless routers that I would like to add to an existing ethernet network to allow wireless connection with our building. I know access points would do the job but I am trying to set this up for a non-profit school and the wireless routers were dontated.

I am trying to have the wireless routers plug into my existing network and then allow laptop's, visitors access to the internet. I am struggling with some of the configuration settings and whether tapping into my existing dhcp on the Windows 2003 server is the right way to go or letting the router "dish-out" a pre-set number of ip's.

Do I let my router obtain a ip automatically or do I set it with a internal static one? will the router then give others ip's from my dhcp on the server or should I set it up to be dhcp for a specific range (within my exising network).

Thanks for any suggestions on how to make this happen.


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All Answers

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Disable DHCP server

by tintoman In reply to Adding a wireless router ...

on any router that you connect to the network, this will effectively make them access points, the IP addresses will be issued by the existing DHCP server and therefore all the addresses will be within the address range of your network.
The routers themselves need to be connected to your network by ethernet cable

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Setting options

by smears In reply to Disable DHCP server

So by disabling the dhcp on each and then setting each one to obtain an ip automatically-- this should do it. No other special settings are required -- almost sounds too easy.

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Everyone deserves a break

by tintoman In reply to Setting options

now and then....and this is yours

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limited connectivity

by smears In reply to Everyone deserves a break

I tried this on one of the routers and I am having problem connecting to the wireless network, I get a limited or no connectivity.

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That would be a case of...

by tintoman In reply to limited connectivity

incorrectly typing the wireless encryption key or using a mismatch of encryption types between computer and router.

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by smears In reply to That would be a case of.. ...

I have the router unsecure at this point, I find it easier to troubleshoot if I can get it working with unsecure first then move to secure. It is not able to acquire an IP address, is thier a setting on my dhcp server that might need to be changed?

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What I found

by smears In reply to Disable DHCP server

I found if I set the router to obtain a IP automatically but set dhcp server on it to enable then set the starting IP to a number within my internal network; then set the number of dhcp users to 10 and gave my dns external address, then the router would allow connection and "dish-out" ips adn users could connect to the internet. However, I am assuming I should set a reservation for that IP range on my dhcp server.

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Connect to the LAN port of the router, not the WAN

by robo_dev In reply to What I found

Disable DHCP in wlan router
set a static IP address (so you can find it easier on the lan)

connect a LAN port of the wireless router to your existing switch.

This effectively makes the routers work as APs.

DHCP passthru, doing double NAT, and all the firewall features of the router make the WAN port a no-no.

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school = kids = many problems

by CG IT In reply to Adding a wireless router ...

your question asks for ideas on setting up wireless access for "guest" internet access in a school environment, yet you don't provide any security requirements needed.

Also your existing infrastructure isn't mentioned as to what is available for creating this feature.

If it was me, in a school environment, providing internet access to "guests", I would seperate those "guests" from the internal network so that they can not gain access to the internal network.

If you only have 1 Internet line, [a router with a firewall and 4 port switch between your network and the internet], then I would place the wireless router on one of the perimeter router/firewall LAN switches, configure it with a different LAN subnet, then place a firewall between the perimeter router/firewall and your internal network.

That way users with wireless access for the internet only get to the internet and not get to the private network which is protected by a firewall.

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